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Small and medium business | Business Central, N...
Suggested answer

Dynamics NAV 2017: Missing Microsoft.Office.Interop.Outlook, Version=14.0.0.0

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Posted on by 5

Hi,

Bear with me - I'm not a NAV consultant, but have been called upon to troubleshoot why a client is unable to send invoices using Outlook. Their regular NAV consultant have drawn a blank...

They are using NAV2017 and Office 365 ProPlus on a windows 10 platform, and all is hosted in-house. Pretty standard I would imagine.

When trying to send the invoices the following error appears (translated from Danish, so it may not be 100% correct)

"Could not load type ‚Microsoft.Office.Interop.Outlook.ApplicationClass.’Microsoft.Office.Interop.Word, Version=14.0.0.0,Culture=Neutral,PublicKeyToken=71e9bce111e9429c‘."

The Interop version 14 should be the Office 2010 version, and it is not present on the computer. Only Version 15.

I've tried installing the "Microsoft Office 2010: Primary Interop Assemblies Redistributable" (https://www.microsoft.com/en-us/download/details.aspx?id=3508), but the error is still present.

Looking at the GAC_MSIL folder I see the version 14 files are missig and only the version 15 files are present

c:\Windows\assembly\GAC_MSIL\Microsoft.Office.Interop.Outlook\15.0.0.0__71e9bce111e9429c

Looking in the RoleTailored Client folder I see the interop files, but they are identical to the ones found in the GAC_MSIL folder (version 15).

Any ideas would be greatly appreciated.

Sincerly

Mikkel Andreasen

I have the same question (0)
  • Suggested answer
    THE Italian Profile Picture
    on at
    RE: Dynamics NAV 2017: Missing Microsoft.Office.Interop.Outlook, Version=14.0.0.0

    There should be the right Office redidstributable package in the NAV DVD.

    If this cannot make it to work, ask your partner to troubleshoot the issue. I would also engage them to perform an upgrade to the latest (and greatest) version. 

    Keep in mind that NAV 2017 will be out of mainstream support by January 2021.

  • Mikkel Andreasen Profile Picture
    5 on at
    RE: Dynamics NAV 2017: Missing Microsoft.Office.Interop.Outlook, Version=14.0.0.0

    Hi Duilio

    I've looked through the DVD (which he fortunately copied to the server) and installing the "Microsoft Visual Studio 2010 Tools For Office Redist" does not seem to resolve the issue.

    Is that the redistributable package you were referring to?

    Regarding the 2021 deadline, I'll make sure to convey that to the client.

    Sincerely

    Mikkel Andreasen

  • THE Italian Profile Picture
    on at
    RE: Dynamics NAV 2017: Missing Microsoft.Office.Interop.Outlook, Version=14.0.0.0

    It might also be that you have to recompile the objects that are using that dotnet component with the current one in your machine.

    The strange thins is that u mention Outlook but the error is about Word interop. 

  • Mikkel Andreasen Profile Picture
    5 on at
    RE: Dynamics NAV 2017: Missing Microsoft.Office.Interop.Outlook, Version=14.0.0.0

    Hi,

    Oh! I seem to have copied the wrong error message - it's the Outlook interop in the error message.

    3034.2020_2D00_10_2D00_01-15_5F00_02_5F00_00_2D00_Indbakke-_2D00_-man_4000_modulo.gl-_2D00_-Outlook.png

    Is the recompile of the NAV client to include the interop, or a separate VStudio application that needs to be compiled?

    Sincerly

    Mikkel

  • Suggested answer
    THE Italian Profile Picture
    on at
    RE: Dynamics NAV 2017: Missing Microsoft.Office.Interop.Outlook, Version=14.0.0.0

    That might be different then. You could try to recompile in the same machine the same object.

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